GB2035437A - Clamp for fixing an electric cable to a support structure - Google Patents

Clamp for fixing an electric cable to a support structure Download PDF

Info

Publication number
GB2035437A
GB2035437A GB7846109A GB7846109A GB2035437A GB 2035437 A GB2035437 A GB 2035437A GB 7846109 A GB7846109 A GB 7846109A GB 7846109 A GB7846109 A GB 7846109A GB 2035437 A GB2035437 A GB 2035437A
Authority
GB
United Kingdom
Prior art keywords
body portion
clip
cable
clamping
fixing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB7846109A
Other versions
GB2035437B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bowthorpe Hellerman Ltd
Original Assignee
Bowthorpe Hellerman Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bowthorpe Hellerman Ltd filed Critical Bowthorpe Hellerman Ltd
Priority to GB7846109A priority Critical patent/GB2035437B/en
Priority to BR7903828A priority patent/BR7903828A/en
Priority to ZA00795603A priority patent/ZA795603B/en
Priority to US06/087,210 priority patent/US4265420A/en
Priority to ES1979246555U priority patent/ES246555Y/en
Priority to DE19792946257 priority patent/DE2946257A1/en
Priority to IT7927486A priority patent/IT7927486A0/en
Priority to FR7928802A priority patent/FR2442524A1/en
Priority to JP15346579A priority patent/JPS5575299A/en
Publication of GB2035437A publication Critical patent/GB2035437A/en
Application granted granted Critical
Publication of GB2035437B publication Critical patent/GB2035437B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/56—Insulating bodies
    • H01B17/58—Tubes, sleeves, beads, or bobbins through which the conductor passes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
    • H02G3/0616—Joints for connecting tubing to casing
    • H02G3/0625—Joints for connecting tubing to casing with means for preventing disengagement of conductors
    • H02G3/0633—Joints for connecting tubing to casing with means for preventing disengagement of conductors with means urging the conductors to follow a non-straight line

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Clamps And Clips (AREA)
  • Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)
  • Supports For Pipes And Cables (AREA)

Description

1
GB2 035 437A 1
SPECIFICATION
A clip for fixing an electric cable to a support structure
5
This invention relates to a clip for fixing an electric cable to a support structure, particularly for clamping to an electrical appliance a cable passing into the latter. 10 In the case of a cable passing into an electrical appliance, it is important for the cable to be securely clamped to that appliance so that the cable will not be pulled free. Our British patent specification 1 070 214 de-15 scribes and claims an effective clip, having a hollow, tubular body portion through which the cable passes, and a clamping portion to be introduced into one end of the body portion: the two portions are drawn together by a 20 screw so that the clamping portion clamps the cable against an inclined inside surface of the body portion, the screw also serving to secure the clip to a support structure.
Our British patent application 51280/76 25 describes a modified clip in which the tubular body portion has at least two screw-type electrical terminals mounted thereon for terminating respective conductors of the cable.
The above described clips are not able to 30 cope with a large range of diameter of the different cables for which it may be used and the present invention aims to overcome this disadvantage.
This invention provides a clip for fixing an 35 end of an electric cable to a support panel,
said clip comprising a hollow, tubular body portion of plastics material for the cable to extend through, a plastics clamping portion to be introduced into one end of the body por-40 tion and formed with a bore, and a threaded screw for passing through an aperture in the support panel, through an opening in the opposite end of said body portion and into said bore of said clamping portion, the screw 45 serving, upon tightening, to draw the clamping portion further into the body portion so as to clamp the cable between a clamping surface of the clamping portion and an inside inclined surface of the body portion and to 50 clamp the support panel between the screw head and said other end of the body portion, one of said surfaces being formed with a tapering groove to accommodate different cables over a range of diameters. 55 An embodiment of cable fixing clip will now be described, by way of example only, with reference to the accompanying drawing, in which:
Figure 7 is a longitudinal section through a 60 clip in its as-moulded condition;
Figure 2 is a plan view of the clip;
Figure 3 is a section on the line Ill-Ill of Fig. 2; and
Figure 4 is a longitudinal section of the clip 65 when installed securing a cable to a support panel.
Referring to the drawings, there is shown a cable fixing clip formed as a one-piece moulding of plastics material and having two metal 70 ternals secured thereto. The one-piece moulding comprises a hollow, tubular body portion 1 having a generally rectangular opening at its upper end and a circular opening 2,
formed as a tubular extension, in an end wall 75 at its lower end. A curved interior surface 3, provided with transverse serrations, extends from the bottom of the body portion, along an inclined line, part way to the top of the body, whereafter the sides of the body portion are 80 parallel, the body portion thus being wider at the top than at the bottom. The inside opposite side walls of the body portion are provided with respective parallel ribs 4 extending from top to bottom of the body portion. The 85 bottom end wall of the body portion is provided with a small circular opening, in the form of a tubular extension 2a.
Part way up, the opposite side walls of the body portion are provided with respective ex-90 tensions to which respective metal terminals are secured. Each such extension is in the form of a U-shaped channel, with a floor 5, an inner wall 6 on the outside of the main side wall of the body portion, and a parallel 95 outer wall 7. The two side walls 6, 7 are provided with projections 8 having inclined surfaces as shown in Fig. 3. The floor 5 is formed with an aperture to receive freely the end of a terminal screw 10.
100 As shown, each metal terminal 11 is formed from sheet metal bent into U-section. One end portion is provided with rectangular apertures in the opposite side walls, for location of the projections 8 therein, the floor of 105 this portion of the terminal seating on the floor 5 of the plastics body portion extension. By virtue of the inclined surfaces on the projections 8 and the slight resilience of the plastics (preferably nylon), the terminal is 110 snap-engageable with the extension. The floor of the terminal is screw threaded to receive screw 10. The terminal has an opposite end portion, wherein each of the two opposite side walls and the floor are formed as blades 13 11 5 for receiving complementary socket-type terminals of connecting leads (not shown).
The clip also comprises a clamping portion 1 5 which is united to the body portion by an elongate flexible strap 16. The clamping por-1 20 tion is arranged to enter the open top end of the body portion and opposite sides thereof are provided with grooves 1 7 for the ribs 4 to locate slidingly within. The clamping portion has its free end formed with a V-groove 19, 125 with the axis of a bore 20 being parallel to the sides of this groove, and one corner is cut away on an incline, at 18, so as to form a clamping surface disposed on an incline so as to lie parallel to the surface 3 of the body 1 30 portion when the clamping portion is intro
2
GB2 035437A 2
duced into the body portion. The through bore 20 is parallel with the grooves 1 7.
In use, the tubular extensions 2, 2a at the bottom end of the body portion are registered 5 in complementary openings in a support structure, such as a panel as shown in Fig. 4. A mains cable is passed through the body portion, from the bottom end thereof, and the clamping portion is bent around on its flexible 10 strap and pushed into the open top end of the body portion, so that the ribs 4 locate within the grooves 17. A self-tapping screw 22 is inserted through the body portion extension and engages within the through-bore 20 of 15 the clamping portion. As this screw 22 is tightened, the clamping portion is drawn further into the body portion and securely clamps the cable against the interior surface 3 of the body portion. The screw 22 also flat-20 tens the extension onto the supporting structure, thus serving to secure the clip to the latter. The individual leads of the cable are connected to the terminals 11 by means of the terminal screws 10, and other suitable 25 terminated connecting leads may be engaged with the terminal blades 13.
The V-groove 19 of the clamping portion receives the cable and the opposite sides of the V-groove engage opposite side portions of 30 the cable, which is also clamped between the groove 19 and the curved serrated surface 3 of the body portion. Cables of different diameters are accommodated in that, the smaller the cable diameter, the further the cable will 35 enter the groove 19 and the further the clamping portion will enter the body portion.

Claims (5)

1. A clip for fixing an end of an electric 40 cable to a support panel, said clip comprising a hollow, tubular body portion of plastics material for the cable to extend through, a plastics clamping portion to be introduced into one end of the body portion and formed with 45 a bore, and a threaded screw for passing through an aperture in the support panel, through an opening in the opposite end of said body portion and into said bore of said clamping portion, the screw serving, upon 50 tightening, to draw the clamping portion further into the body portion so as to clamp the cable between a clamping surface of the clamping portion and an inside inclined surface of the body portion and to clamp the 55 support panel between the screw head and said other end of the body portion, one of said surfaces being formed with a tapering groove to accommodate different cables over a range of diameters.
60
2. A clip as claimed in claim 1, in which the groove is formed in the clamping surface of the clamping portion.
3. A clip as claimed in claim 2, in which the tapering groove is V-shaped in section. 65
4. A clip as claimed in claim 2 or 3, in which said clamping surface is parallel to said inclined surface of the body portion.
5. A clip for fixing an end of an electric cable to a support panel, substantially as 70 herein described with reference to the accompanying drawings.
Printed for Her Majesty's Stationery Office by Burgess & Son (Abingdon) Ltd.—1980.
Published at The Patent Office, 25 Southampton Buildings,
London, WC2A 1AY, from which copies may be obtained.
GB7846109A 1978-11-27 1978-11-27 Clamp for fixing an electric cable to a support structure Expired GB2035437B (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
GB7846109A GB2035437B (en) 1978-11-27 1978-11-27 Clamp for fixing an electric cable to a support structure
BR7903828A BR7903828A (en) 1978-11-27 1979-06-18 BRACKET FOR FIXING AN END OF AN ELECTRIC CABLE TO A SUPPORT PANEL
ZA00795603A ZA795603B (en) 1978-11-27 1979-10-19 A clip for fixing an electric cable to a support structure
US06/087,210 US4265420A (en) 1978-11-27 1979-10-22 Clip for fixing an electric cable to a support structure
ES1979246555U ES246555Y (en) 1978-11-27 1979-11-01 CLAMP FOR ATTACHING AN ELECTRICAL CABLE TO A SCOURING STRUCTURE
DE19792946257 DE2946257A1 (en) 1978-11-27 1979-11-16 CLAMP FOR FIXING AN END OF AN ELECTRICAL CABLE TO A SUPPORT PLATE
IT7927486A IT7927486A0 (en) 1978-11-27 1979-11-22 CLIP TO ANCHOR AN ELECTRIC CABLE TO A SUPPORTING STRUCTURE.
FR7928802A FR2442524A1 (en) 1978-11-27 1979-11-22 PLIERS FOR FIXING AN ELECTRICAL CABLE TO A SUPPORT STRUCTURE
JP15346579A JPS5575299A (en) 1978-11-27 1979-11-27 Clip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7846109A GB2035437B (en) 1978-11-27 1978-11-27 Clamp for fixing an electric cable to a support structure

Publications (2)

Publication Number Publication Date
GB2035437A true GB2035437A (en) 1980-06-18
GB2035437B GB2035437B (en) 1982-08-25

Family

ID=10501336

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7846109A Expired GB2035437B (en) 1978-11-27 1978-11-27 Clamp for fixing an electric cable to a support structure

Country Status (9)

Country Link
US (1) US4265420A (en)
JP (1) JPS5575299A (en)
BR (1) BR7903828A (en)
DE (1) DE2946257A1 (en)
ES (1) ES246555Y (en)
FR (1) FR2442524A1 (en)
GB (1) GB2035437B (en)
IT (1) IT7927486A0 (en)
ZA (1) ZA795603B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2534327A1 (en) * 1982-10-07 1984-04-13 Itw Fastex Italia Spa Cable gripper; in particular for household electrical appliances.
WO2009113042A2 (en) 2008-03-14 2009-09-17 Itw Industrial Components S.R.L. Con Unico Socio Cable clamp holder with an integrated ground contact, in particular for an electric household appliance

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3108085C2 (en) * 1981-03-04 1984-05-03 Karl 7298 Loßburg Hehl Angular strain relief device for introducing electrical supply lines into a device
US4557448A (en) * 1985-04-01 1985-12-10 J. I. Case Company Clamping assembly
US4729534A (en) * 1986-10-23 1988-03-08 Micro Plastics, Inc. Strain relief bushings
AT394477B (en) * 1990-01-03 1992-04-10 Vaillant Gmbh CABLE GLANCE
DE4233875C2 (en) * 1992-10-08 1995-05-11 Licentia Gmbh Holding device for the strain-relieved fastening of a supply cable in a housing opening of electrical machines
US5886297A (en) * 1997-02-28 1999-03-23 Vogt; William R. Method and apparatus for sealing, on a non-permanent basis, a housing for enclosing electronic equipment
US6732983B1 (en) 2003-02-25 2004-05-11 Joshua Blake Cable clip
US8708738B1 (en) * 2012-09-20 2014-04-29 Michael C Connolly Cable connector
US20210384715A1 (en) * 2020-06-09 2021-12-09 Michael M. Bogart Utility junction box
US20220060010A1 (en) * 2020-08-20 2022-02-24 Taylor James Moore Cable Pass Through System
US11942771B2 (en) * 2021-01-13 2024-03-26 Sumitomo Wiring Systems, Ltd. Power distribution box with an engagement feature for overcoming a cantilevered force of a bend in a wire bundle

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2490286A (en) * 1946-09-13 1949-12-06 Appleton Electric Co Electrical connector
BE627135A (en) * 1962-01-17
GB1070214A (en) * 1964-07-17 1967-06-01 Insuloid Mfg Company Ltd Electric cable fixing means
ES219747Y (en) * 1973-01-09 1977-02-01 PERFECTED CLAMP OF PLASTIC MATERIAL FOR PIPES, CABLES OR ANALOGS.
DE2316747A1 (en) * 1973-04-04 1974-10-17 Merten Geb STRAIN RELIEF CLAMP FOR ELECTRIC CABLES
DE2502050C3 (en) * 1975-01-20 1978-08-17 Hans 5463 Unkel Simon Cable entry with strain relief
GB1560099A (en) * 1976-12-08 1980-01-30 Bowthorpe Hellermann Ltd Clip for fixing and electric cable to a support structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2534327A1 (en) * 1982-10-07 1984-04-13 Itw Fastex Italia Spa Cable gripper; in particular for household electrical appliances.
WO2009113042A2 (en) 2008-03-14 2009-09-17 Itw Industrial Components S.R.L. Con Unico Socio Cable clamp holder with an integrated ground contact, in particular for an electric household appliance
WO2009113042A3 (en) * 2008-03-14 2009-11-12 Itw Industrial Components S.R.L. Con Unico Socio Cable clamp holder with an integrated ground contact, in particular for an electric household appliance

Also Published As

Publication number Publication date
JPS5575299A (en) 1980-06-06
US4265420A (en) 1981-05-05
GB2035437B (en) 1982-08-25
ES246555U (en) 1980-02-16
FR2442524A1 (en) 1980-06-20
DE2946257A1 (en) 1980-06-12
ES246555Y (en) 1980-09-01
ZA795603B (en) 1980-10-29
BR7903828A (en) 1980-12-16
IT7927486A0 (en) 1979-11-22

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee